挺叶柯 ting ye ke

Trees to 15 m tall, glabrous except for inflorescences. Branches of current year conspicuously sulcate. Petiole rarely to 3 mm; leaf blade narrowly oblong, 1-2 × 5-20 cm, rigidly leathery, concolorous, abaxially often white farinose, base rounded to auriculate, margin entire and recurved, apex narrowed and obtuse; secondary veins 12-18 on each side of midvein, slender, evident, adaxially impressed; tertiary veins abaxially not visible or very slender, evident. Male inflorescences sometimes androgynous, often congested at apex of branches, to 10 cm; rachis puberulent. Female inflorescence with cupules in clusters of ca. 3. Infructescences 6-8 cm; rachis puberulent, ca. 2 mm thick. Cupule plate- to shallowly bowl-shaped, 2-4 × 5-8 mm, covering base of nut, wall to 1 mm thick near base; bracts imbricate and appressed or sometimes connate into 3 or 4 concentric rings, triangular, small. Nut narrowly ellipsoid to conical, 1.2-1.8 × 1-1.2 cm, often ± white farinose, base flat, apex pointed, wall ca. 0.5 mm thick; scar 3-4 mm in diam., concave. Fl. May-Jun, fr. Aug-Sep of following year.

* Broad-leaved evergreen forests, more frequent in secondary forests; 400-900 m. E Guangdong